SYNTHESIS OF NIPAGIN ESTERS
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REFERENCES
1. Yang, K.; Mao, G. Z. The synthesis and application as preservative in beer of heptyl para-
ben. China Food Additives 2003, 3, 20–25.
2. Zheng, X. Z.; Shan, Y. Studies on the sunthetis methods for octyl and isopropyl Nipagin
ester. Chem. World 1997, 19, 12–17.
3. Xu, W. Y.; Lin, H. L.; Xiong, G. X.; Peng, X. J. Research progress in catalytic synthesis of
Nipagin esters. Food Sci. Technol. 2002, 44–47.
4. Li, X. L.; Zhang, N. R.; Zhang, Y. H.; Hui, D. Recent development of Nipagin ester pre-
servative. J. Hebei Inst. Chem. Technol. 1995, 16, 58–60.
5. Tang, M. M.; Liu, K.; Liang, M. Research on synthesis of ethyl p-hydroxyl benzoate.
Tianjin Chem. Ind. 2003, 17, 22–25.
6. Yan, R. A.; Liang, S. H.; Huang, X. S. Synthesis of dodecyl Nipagin ester. Sci. Technol.
Food Ind. 2006, 27, 148–152.
7. Zhu, Z. Q.; Zhou, C. Y.; Lv, Z. H. Study on the ion exchange resin as catalyst for the
esterification of 4-hydroxybenzoic acid. Ion Exch. Adsorp. 2000, 16, 362–365.
8. Qian, Y. H.; Jin, Y. L.; Chen, J.; Hu, T.; Tan, L. Q. Study on the synthesis of dodecyl
nipogin ester with solid superacid SO24ꢀ=TiO2-attapulgite as catalyst. China Condiment
2007, 41–45.
9. Yang, S. J.; Liang, Y. G.; Yu, X. W.; Sun, L. T. Catalytic synthesis Nipagin esters with
TiSiW12O40=TiO2. China Surfact. Deterg. Cosmetics 2000, 20–25.
10. Liu, W. Q.; Yu, S. X.; Zhang, L. X. Synthesis of n-butyl p-hydroxybenzoate catalyzed by
inorganic solid acid. Indust. Catal. 2004, 12, 29–32.
11. Cole, A. C.; Jensen, J. L.; Ntai, I.; Tran, K.; Weaver, K. J.; Forbes, D. C.; Davis, J. H.
Novel Brønsted acidic ionic liquids and their use as dual solvent–catalysts. J. Am. Chem.
Soc. 2002, 124, 5962–5963.
12. Zhu, X. Q.; Gui, J. Z.; Liu, D.; Zhang, X. T.; Song, L. J.; Sun, Z. L. Synthesis of isopropyl
chloroacetate catalyzed by acidic ionic liquids. Indust. Catal. 2006, 14, 33–35.
13. Wu, W.; Wei, X. L.; Wu, G.; Li, L. F.; Zhang, M. L. High selective synthesis of 2,6-
dimethylnaphthanlene catalyzed by acidic ionic liquids. Chin. J. Catal. 2007, 28, 572–574.
14. Guo, S.; Du, Z. Y.; Zhang, S. G.; Li, D. M.; Li, Z. D.; Deng, Y. Q. Clean Beckmann
rearrangement of cyclohexanone oxime in caprolactambased Brønsted acidic ionic liquids.
Green Chem. 2006, 8, 296–300.
15. Gupta, N.; Kad, G. L.; Singh, J. Acidic ionic liquid [bmim]HSO4: An efficient catalyst for
acetalization and thioacetalization of carbonyl compounds and their subsequent deprotec-
tion. Catal. Commun. 2007, 8, 1323–1330.
16. Lee, S. G. Functionalized imidazolium salts for task-specific ionic liquids and their appli-
cations. Chem. Commun. 2006, 1049–1052.
17. Davis, J. H. Task-specific ionic liquids. Chem. Lett. 2004, 33, 1072–1076.
18. Davis, J. H. Proceedings of the Symposium on Advances in Solvent Selection and Substi-
tution for Extraction, American Institute of Chemical Engineers: New York, 2000.
19. Wilkes, J. S. Properties of ionic liquid solvents for catalysis. J. Mo1. Catal. A: Chem. 2004,
214, 11–15.
20. Xing, H. B.; Wang, T.; Zhou, Z. H.; et al. Novel Brønsted acidic ionic liquids for ester-
ifications. Ind. Eng. Chem. Res. 2005, 44, 4147–4152.
21. Atef, A.; Jean, P. B. Efficient combination of recyclable task specific ionic liquid and
microwave dielectric heating for the synthesis of lipophilic esters. Org. Process. Res.
Dev. 2005, 9, 743–750.
22. Zhang, H. B.; Xu, F.; Zhou, X. H.; Zhang, G. Y.; Wang, C. X. A Brønsted acidic ionic
liquid as an efficient and reusable catalyst system for esterification. Green. Chem. 2007, 9,
1208–1211.